Web controls validation

500

(1) namespace System.Web.UI

(2) {

(3) public interface IValidator

(4) {

(5) // Properties

(6) public Boolean IsValid {get;set;}

(7) public String ErrorMessage {get;set;} (8)

(9) // Methods

(10) public void Validate();

(11) }

(12) }

FIG. 5

600

(1) namespace System.Web.UI

(2) {

(3) [AttributeUsage(AttributeTargets.Class)]

(4) public class ValidationProperty : Attribute

(5) {

(6) // Properties

(7) public String ValidationProperty {get;} (8)

(9) // Constructor

(10) public ValidationProperty(String propertyName);

(11) }

(12) }

FIG. 6

700

(1) namespace System.Web.UI

(2) {

(3) public class Page : TemplateControl

(4) {

(5) // Properties

(6) public Boolean IsValid {get;}

(7) public ValidatorCollection Validators {get;}

(8) }

(9) }

FIG. 7

800

(1) namespace System.Web.UI

(2) {

(3) public class BaseValidator: Label, IValidator

(4) {

(5) // Properties

(6) public String ControlToValidate {get; set;}

(7) public Boolean IsValid {get; set;}

(8) public String ErrorMessage {get; set;}

(9) public ValidatorDisplay Display {get; set;}

(10) public String Text {get; set;}

(11) Public Boolean EnableClientScript {get; set;} (12)

(13) //Methods

(14) public void Validate();

(15) } (16)

(17) public enum ValidatorDisplay

(18) {

(19) None = 0; // Validator is always invisible; used when the error

(20) // message is only shown in a ValidationSummary

(21) Static = 1;' // Validator takes up space even when hidden

(22) Dynamic = 2; // Validator takes up space only when visible

(23) }

(24) }

FIG. 8